Electronic Components Datasheet Search |
|
LM137AHVK Datasheet(PDF) 6 Page - Seme LAB |
|
LM137AHVK Datasheet(HTML) 6 Page - Seme LAB |
6 / 7 page NEGATIVE ADJUSTABLE VOLTAGE REGULATOR Semelab Limited Semelab Limited Semelab Limited Semelab Limited Coventry Road, Lutterworth, Leicestershire, LE17 4JB Telephone +44 (0) 1455 556565 Fax +44 (0) 1455 552612 Email: sales@semelab-tt.com Website: http://www.semelab-tt.com Document Number 8380 Issue 1 Page 6 of 7 APPLICATIONS INFORMATION High Stability Regulator The output stability, load regulation, line regulation, thermal regulation, temperature drift, long term drift, and noise, can be improved by a factor of 6.6 over the standard regulator configuration. This assumes a zener has 20PPM/°C maximum drift and about 10 times lower noise than the regulator. Multiple Tracking Regulators In the application shown below, regulator #2 to “N” will track regulator #1 to within ±24mV initially, and to ±60mV over all load line, and temperature conditions. If any regulator output is shorted to ground, all other outputs will drop to -2V. Load regulation of regulators #2 to “N” will be improved by VOUT / 1.25V compared to a standard, so regulator #1 should be the one which has the lowest load current. Dual Tracking Supply Current Regulator * Solid Tantalum ** R1 & R5 maybe trimmed slightly to improve tracking R3 1.5k 1% ADJ IP137 VIN VOUT R1 1k 1% 1µF –VOUT SOLID TANTALUM 7V R2 * –VIN ( ) V OUT 9.08 x 10 -3 – 908 Ω R2 = * C3 10µF R2 ADJ IP137 V IN V OUT 1N4002 R1 120 Ω –VIN ADJ IP137 V IN V OUT 1N4002 2µF C1 1µF SOLID TANTALUM –VOUT1 REG #1 2µF REG #2 1µF SOLID TANTALUM OUT2 –V ADJ IP137 V IN V OUT 1N4002 2µF REG #N OUT N –V 1µF SOLID TANTALUM ADJ IP137 V IN V OUT D2 1N4002 –V OUT IN –V R5** 100 Ω 1% R3 5k 10µF V IN V OUT ADJ IP137 R1** 100 Ω 1% 10µF 2.2 µF 2.2 µF D1 1N4002 IN +V +V OUT R2 5k 1% R4 5k 1% * * ADJ V IN V OUT (–) I (+) C1 1µF SOLID TANATALUM IP137 RS 0.8 Ω ≤ ≤ 250Ω R S I = 65µA + 1.25 V R S IP137 IP137 IP137 IP137 IP137 IP137 IP137 |
Similar Part No. - LM137AHVK |
|
Similar Description - LM137AHVK |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |